EP2414464B1 - Beschichtungszusammensetzung, die zur beschichtung von eisenfreien oberflächen geeignet ist - Google Patents
Beschichtungszusammensetzung, die zur beschichtung von eisenfreien oberflächen geeignet ist Download PDFInfo
- Publication number
- EP2414464B1 EP2414464B1 EP10716781.9A EP10716781A EP2414464B1 EP 2414464 B1 EP2414464 B1 EP 2414464B1 EP 10716781 A EP10716781 A EP 10716781A EP 2414464 B1 EP2414464 B1 EP 2414464B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating composition
- lithium
- scribe
- shiny
- magnesium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000008199 coating composition Substances 0.000 title claims description 68
- 238000005260 corrosion Methods 0.000 claims description 115
- 230000007797 corrosion Effects 0.000 claims description 114
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical group [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 110
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 109
- 239000000203 mixture Substances 0.000 claims description 92
- 150000003839 salts Chemical class 0.000 claims description 65
- 229910003002 lithium salt Inorganic materials 0.000 claims description 55
- 159000000002 lithium salts Chemical class 0.000 claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 229920005989 resin Polymers 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 38
- 239000000758 substrate Substances 0.000 claims description 37
- 239000003112 inhibitor Substances 0.000 claims description 32
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 32
- 239000000395 magnesium oxide Substances 0.000 claims description 28
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 26
- 239000011777 magnesium Substances 0.000 claims description 26
- 229910001386 lithium phosphate Inorganic materials 0.000 claims description 25
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 25
- 239000004814 polyurethane Chemical class 0.000 claims description 25
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 claims description 25
- 229920002635 polyurethane Chemical class 0.000 claims description 24
- 239000002987 primer (paints) Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- -1 polysiloxanes Polymers 0.000 claims description 20
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 19
- 229910052749 magnesium Inorganic materials 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 229910000838 Al alloy Inorganic materials 0.000 claims description 16
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000012948 isocyanate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 150000002513 isocyanates Chemical class 0.000 claims description 8
- 229920000608 Polyaspartic Chemical class 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical class C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- WDJHALXBUFZDSR-UHFFFAOYSA-M acetoacetate Chemical compound CC(=O)CC([O-])=O WDJHALXBUFZDSR-UHFFFAOYSA-M 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical class [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Chemical class 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 229920000058 polyacrylate Chemical class 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229940031958 magnesium carbonate hydroxide Drugs 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical class [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Chemical class 0.000 claims description 2
- 229910001862 magnesium hydroxide Chemical class 0.000 claims description 2
- 229920000728 polyester Chemical class 0.000 claims description 2
- 229920000570 polyether Chemical class 0.000 claims description 2
- 229960000869 magnesium oxide Drugs 0.000 claims 2
- 229940091250 magnesium supplement Drugs 0.000 claims 2
- 229960000816 magnesium hydroxide Drugs 0.000 claims 1
- 239000000523 sample Substances 0.000 description 51
- 239000007921 spray Substances 0.000 description 49
- 239000000047 product Substances 0.000 description 47
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 43
- 230000007935 neutral effect Effects 0.000 description 39
- 239000003973 paint Substances 0.000 description 37
- 238000012360 testing method Methods 0.000 description 37
- 238000009472 formulation Methods 0.000 description 34
- 238000002203 pretreatment Methods 0.000 description 28
- 238000000576 coating method Methods 0.000 description 25
- 230000000007 visual effect Effects 0.000 description 25
- 230000000694 effects Effects 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 22
- 239000002904 solvent Substances 0.000 description 21
- 238000003756 stirring Methods 0.000 description 21
- 238000002156 mixing Methods 0.000 description 19
- 238000001723 curing Methods 0.000 description 18
- 239000000126 substance Substances 0.000 description 18
- 150000001412 amines Chemical class 0.000 description 16
- 239000006185 dispersion Substances 0.000 description 15
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 14
- 239000004593 Epoxy Substances 0.000 description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 13
- 239000008240 homogeneous mixture Substances 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- 230000003204 osmotic effect Effects 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 13
- 101150060825 SRPP gene Proteins 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 11
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 11
- 238000007654 immersion Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 10
- 238000003801 milling Methods 0.000 description 10
- 239000000049 pigment Substances 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000004615 ingredient Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000002161 passivation Methods 0.000 description 7
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 7
- 239000003039 volatile agent Substances 0.000 description 7
- 229920000388 Polyphosphate Polymers 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 6
- 239000003085 diluting agent Substances 0.000 description 6
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 239000001205 polyphosphate Substances 0.000 description 6
- 235000011176 polyphosphates Nutrition 0.000 description 6
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000007739 conversion coating Methods 0.000 description 5
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 239000005056 polyisocyanate Substances 0.000 description 5
- 229920001228 polyisocyanate Polymers 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 4
- FZOVWXHXLPXQON-UHFFFAOYSA-N [O-2].[O-2].[Mg+2].[Mg+2] Chemical compound [O-2].[O-2].[Mg+2].[Mg+2] FZOVWXHXLPXQON-UHFFFAOYSA-N 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 125000005442 diisocyanate group Chemical group 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- LDJNSLOKTFFLSL-UHFFFAOYSA-M lithium;benzoate Chemical compound [Li+].[O-]C(=O)C1=CC=CC=C1 LDJNSLOKTFFLSL-UHFFFAOYSA-M 0.000 description 4
- 239000011049 pearl Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 229910000165 zinc phosphate Inorganic materials 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 3
- 238000002048 anodisation reaction Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 229940031993 lithium benzoate Drugs 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000006254 rheological additive Substances 0.000 description 3
- 229910052712 strontium Inorganic materials 0.000 description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 3
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- 239000010750 BS 2869 Class C2 Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004693 Polybenzimidazole Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 150000002642 lithium compounds Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- ZTFZSHLWORMEHO-UHFFFAOYSA-A pentaaluminum;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ZTFZSHLWORMEHO-UHFFFAOYSA-A 0.000 description 2
- 239000013500 performance material Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920002480 polybenzimidazole Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- GFNDFCFPJQPVQL-UHFFFAOYSA-N 1,12-diisocyanatododecane Chemical compound O=C=NCCCCCCCCCCCCN=C=O GFNDFCFPJQPVQL-UHFFFAOYSA-N 0.000 description 1
- ZGDSDWSIFQBAJS-UHFFFAOYSA-N 1,2-diisocyanatopropane Chemical compound O=C=NC(C)CN=C=O ZGDSDWSIFQBAJS-UHFFFAOYSA-N 0.000 description 1
- ZIZJPRKHEXCVLL-UHFFFAOYSA-N 1,3-bis(6-isocyanatohexyl)-1,3-diazetidine-2,4-dione Chemical compound O=C=NCCCCCCN1C(=O)N(CCCCCCN=C=O)C1=O ZIZJPRKHEXCVLL-UHFFFAOYSA-N 0.000 description 1
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 description 1
- IKYNWXNXXHWHLL-UHFFFAOYSA-N 1,3-diisocyanatopropane Chemical compound O=C=NCCCN=C=O IKYNWXNXXHWHLL-UHFFFAOYSA-N 0.000 description 1
- OHLKMGYGBHFODF-UHFFFAOYSA-N 1,4-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=C(CN=C=O)C=C1 OHLKMGYGBHFODF-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- QGLRLXLDMZCFBP-UHFFFAOYSA-N 1,6-diisocyanato-2,4,4-trimethylhexane Chemical compound O=C=NCC(C)CC(C)(C)CCN=C=O QGLRLXLDMZCFBP-UHFFFAOYSA-N 0.000 description 1
- QUPKOUOXSNGVLB-UHFFFAOYSA-N 1,8-diisocyanatooctane Chemical compound O=C=NCCCCCCCCN=C=O QUPKOUOXSNGVLB-UHFFFAOYSA-N 0.000 description 1
- ZAXXZBQODQDCOW-UHFFFAOYSA-N 1-methoxypropyl acetate Chemical compound CCC(OC)OC(C)=O ZAXXZBQODQDCOW-UHFFFAOYSA-N 0.000 description 1
- KJUGUADJHNHALS-UHFFFAOYSA-N 1H-tetrazole Substances C=1N=NNN=1 KJUGUADJHNHALS-UHFFFAOYSA-N 0.000 description 1
- LHNAURKRXGPVDW-UHFFFAOYSA-N 2,3-diisocyanatobutane Chemical compound O=C=NC(C)C(C)N=C=O LHNAURKRXGPVDW-UHFFFAOYSA-N 0.000 description 1
- VZDIRINETBAVAV-UHFFFAOYSA-N 2,4-diisocyanato-1-methylcyclohexane Chemical compound CC1CCC(N=C=O)CC1N=C=O VZDIRINETBAVAV-UHFFFAOYSA-N 0.000 description 1
- KRDSXENYLDIORL-UHFFFAOYSA-N 2-(1,3-benzothiazol-2-ylsulfanyl)butanedioic acid Chemical compound C1=CC=C2SC(SC(CC(=O)O)C(O)=O)=NC2=C1 KRDSXENYLDIORL-UHFFFAOYSA-N 0.000 description 1
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 1
- 229910000547 2024-T3 aluminium alloy Inorganic materials 0.000 description 1
- NECRQCBKTGZNMH-UHFFFAOYSA-N 3,5-dimethylhex-1-yn-3-ol Chemical compound CC(C)CC(C)(O)C#C NECRQCBKTGZNMH-UHFFFAOYSA-N 0.000 description 1
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- WYNCHZVNFNFDNH-UHFFFAOYSA-N Oxazolidine Chemical compound C1COCN1 WYNCHZVNFNFDNH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 description 1
- FCVHBUFELUXTLR-UHFFFAOYSA-N [Li].[AlH3] Chemical compound [Li].[AlH3] FCVHBUFELUXTLR-UHFFFAOYSA-N 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004705 aldimines Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000004844 aliphatic epoxy resin Substances 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- FIQKTHSUXBJBCQ-UHFFFAOYSA-K aluminum;hydrogen phosphate;hydroxide Chemical compound O.[Al+3].[O-]P([O-])([O-])=O FIQKTHSUXBJBCQ-UHFFFAOYSA-K 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 1
- 229940043232 butyl acetate Drugs 0.000 description 1
- FUFJGUQYACFECW-UHFFFAOYSA-L calcium hydrogenphosphate Chemical compound [Ca+2].OP([O-])([O-])=O FUFJGUQYACFECW-UHFFFAOYSA-L 0.000 description 1
- VAWSWDPVUFTPQO-UHFFFAOYSA-N calcium strontium Chemical compound [Ca].[Sr] VAWSWDPVUFTPQO-UHFFFAOYSA-N 0.000 description 1
- 150000005323 carbonate salts Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000011153 ceramic matrix composite Substances 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001869 cobalt compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- MHJAJDCZWVHCPF-UHFFFAOYSA-L dimagnesium phosphate Chemical compound [Mg+2].OP([O-])([O-])=O MHJAJDCZWVHCPF-UHFFFAOYSA-L 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000004658 ketimines Chemical class 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000011156 metal matrix composite Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000004843 novolac epoxy resin Substances 0.000 description 1
- ATGUVEKSASEFFO-UHFFFAOYSA-N p-aminodiphenylamine Chemical compound C1=CC(N)=CC=C1NC1=CC=CC=C1 ATGUVEKSASEFFO-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical class O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- IJAPPYDYQCXOEF-UHFFFAOYSA-N phthalazin-1(2H)-one Chemical compound C1=CC=C2C(=O)NN=CC2=C1 IJAPPYDYQCXOEF-UHFFFAOYSA-N 0.000 description 1
- LFSXCDWNBUNEEM-UHFFFAOYSA-N phthalazine Chemical class C1=NN=CC2=CC=CC=C21 LFSXCDWNBUNEEM-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- BPILDHPJSYVNAF-UHFFFAOYSA-M sodium;diiodomethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(I)I BPILDHPJSYVNAF-UHFFFAOYSA-M 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- OHOBJYLZBONBBA-UHFFFAOYSA-N strontium zinc Chemical compound [Zn+2].[Sr+2] OHOBJYLZBONBBA-UHFFFAOYSA-N 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- GPTWCNIDKQZDFF-UHFFFAOYSA-H trizinc;diphosphate;hydrate Chemical compound O.[Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GPTWCNIDKQZDFF-UHFFFAOYSA-H 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
Definitions
- the present invention relates to a coating composition and its use as anticorrosive primer.
- Hexavalent chromium compounds have long been in use as corrosion inhibitors in paints and conversion coatings for aluminium surfaces.
- hexavalent chromium is toxic and is therefore due to be phased out for environmental, worker safety, and regulatory reasons.
- Hexavalent chromium-free formulations especially struggle to meet corrosion resistance standards based on ASTM B117 salt spray testing, which is a widely accepted aerospace industry method. Over the years several promising options for corrosion protection have been investigated, but implementation has been problematic due to compatibility issues with current technologies.
- Bucheit et al., Corrosion Science, 50 (1994) 205-214 discloses the pretreatment, prior to coating, of aluminium substrates with an aqueous solution comprising lithium carbonate and lithium hydroxide.
- Coating compositions that contain lithium compounds are disclosed in US 6,069,197 and EP 0 316 066 . Coating compositions differ from pre-treatment solutions in that they contain a film-forming resin.
- US 6,069,197 discloses coating compositions comprising aluminium lithium alloy particles and a water-soluble polymer containing carboxylic and/or phosphino-carboxylic acidfunctional groups.
- EP 0 316 066 describes a corrosion-inhibiting composition comprising silica particles exchanged with corrosion-inhibiting ions such as lithium.
- NL 7800986 A describes a non-aqueous dispersion as anti-fouling ingredient for solvent-borne coatings for boat hulls.
- the dispersion comprises a salt of lithium, sodium, berrylium, magnesium or calcium, and a triorganotin fluoride.
- US 5089304 describes a composition providing anticorrosive properties to copper substrates.
- the compostion comprises a polybenzimidazole, an organic solvent, and optionally an inorganic salt such as lithium chloride to enhance the solubility of the polybenzimidazole.
- US 2007/106018 A relates to moisture curing coating compositions based on isocyanate-functional polymers.
- the compositions provide anticorrosive properties to steel substrates.
- the composition optionally comprises a catalyst. Suitable catalysts include tin compounds, amines, amidines, guanidines, zinc compounds, cobalt compounds, bismuth compounds, and lithium salts.
- WO 2008/138384 A describes a removable coating composition for the temporary coating of turbine parts.
- the composition comprises a polysiloxane, organic solvent, and a filler.
- the filler can be selected from carbon powder, metal powder, strontium carbonate, calcium carbonate, sodium carbonate, lithium carbonate, magnesium carbonate, and mixtures thereof.
- the object of the present invention is to provide a low-temperature curable coating composition with good anticorrosive properties which is easy to make with commercially available and relatively cheap materials, and which has a robust reproducible performance. Furthermore, it is an object of the present invention to provide an anticorrosive coating composition which has a reduced sensitivity to blistering.
- the coating composition according to the present invention which comprises a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.
- the coating composition according to the present invention is able to provide improved passivation of scribes during corrosion testing, which is recognized by a bright scribe, whereas other hexavalent chromium-free coating systems show dark deteriorated scribes after exposure to an ASTM B117 test.
- the coating composition according to the present invention also has good filiform corrosion resistance, pot-life, and stability. It further has reduced sensitivity to osmotic and/or corrosion-induced blistering.
- the coating composition according to the present invention suitably is a liquid coating composition.
- the composition may comprise a volatile liquid diluent, such as a volatile organic solvent or water.
- the composition may be water-borne, solvent-borne, or solvent-free.
- solvent-free is defined as containing a total volatile liquid diluent content, including water and organic solvent, of less than 5 wt%.
- water-borne is defined as containing at least 5 wt% of volatile liquid diluent, at least 50 wt% of the total weight of the volatile liquid diluent being water.
- solvent borne is defined as having a total volatile liquid diluent content, including water and organic solvent, of at least 5 wt%, more than 50 wt% of the total weight of volatile liquid diluent being organic solvent.
- the coating composition according to the present invention is low temperature curable, which means that it is curable, i.e. can form a network, at a temperature below 120°C, preferably below 100°C, more preferably below 80°C, even more preferably below 50°C, and most preferably at ambient conditions.
- the film-forming resin can be selected from, e.g., epoxy resins, hydroxy-functional resins (like polyesters and (meth)acrylates), resins with 1 or more blocked hydroxyl groups (like acetals), oxazolidine resins, carboxylic-acidfunctional resins), polyacrylates, polyurethanes, polyethers, polyaspartic esters, (blocked) isocyanates, mercapto-functional resins, amine-functional resins, amide-functional resins, imide-functional resins (e.g.
- alkyd resins resins containing at least one olefinically unsaturated bond
- silane-containing resins silane-containing resins
- polysiloxane resins polysiloxane resins
- mixtures and hybrids thereof Epoxy resins and polyurethanes are the preferred resins for use in the composition according to the present invention.
- Hydroxy-functional resins preferably have a hydroxy functionality between 2.1 and 3.5 and an equivalence weight of at least 200 g/mol, based on solids.
- film-forming resin includes monomers or oligomers which during curing of the coating form a polymeric system.
- monomers or oligomers are siloxanes (e.g. tetraalkoxysilane or silanes functionalized with epoxy, amine, mercaptan, or olefinic functionalities), alone or in combination with organic monomers or oligomers.
- the polymeric system can be formed from the monomers or oligomers by various technologies, including sol-gel technology.
- the resin is preferably present in the coating composition according to the present invention in an amount of 30-90 vol%, more preferably 40-80 vol%, and most preferably 45-55 vol%, based on the sum of the volumes of the non-volatile components of the coating composition.
- the volumes of the non-volatile components can be measured directly or they can calculated on the basis of their densities.
- the coating composition further contains a curing agent for the film-forming resin, the type depending on the nature of the film-forming resin.
- Acetoacetate resin-based coating compositions preferably contain a ketimine-based curing agent.
- Epoxy resin-containing compositions preferably contain an aliphatic or aromatic amine curing agent, a polyamide curing agent, or a thiol-based curing agent.
- Suitable epoxy resins are Bisphenol A, Bisphenol F, Bisphenol A/F, Novolac and aliphatic epoxy resins.
- Suitable amine curing agents are aliphatic amines and their adducts (e.g. Ancamine ® 2021), phenalkamines, cycloaliphatic amines (e.g. Ancamine ® 2196), amido amines (e.g. Ancamide ® 2426), polyamides and their adducts, and mixtures of thereof.
- the epoxy/NH ratio in epoxy-amine type coating compositions is preferably in the range 0.6 to 2.0, more preferably 0.8 to 1.7.
- the epoxy/NH ratio is preferably 0.6 to 1.4, more preferably 0.8 to 1.2, and most preferably in the range 0.85 to 1.1.
- the epoxy/NH ratio is preferably 0.6 to 2.0, more preferably 0.9 to 1.7, and most preferably in the range 1.3 to 1.7.
- Preferred curing agents for hydroxy-functional resins are isocyanates and isocyanurates.
- Suitable isocyanate curing agents are aliphatic, alicyclic, and aromatic polyisocyanates such as trimethylene diisocyanate, 1,2-propylene diisocyanate, tetramethylene diisocyanate, 2,3-butylene diisocyanate, hexamethylene diisocyanate, octamethylene diisocyanate, 2,4-trimethyl hexamethylene diisocyanate, 2,4,4-trimethyl hexamethylene diisocyanate, dodecamethylene diisocyanate, ⁇ , ⁇ '-dipropyl ether diisocyanate, 1,3-cyclopentylene diisocyanate, 1,2-cyclohexylene diisocyanate, 1,4-cyclohexylene diisocyanate, 4-methyl-1,3-cyclohexylene diisocyanate, 4,4'-dicyclohexy
- Adducts of polyisocyanates are also suitable, e.g., biurets, isocyanurates, allophonates, uretdiones, and mixtures thereof.
- adducts are the adduct of two molecules of hexamethylene diisocyanate or isophorone diisocyanate to a diol such as ethylene glycol, the reaction product of 3 molecules of hexamethylene diisocyanate and 1 molecule of water, the adduct of 1 molecule of trimethylol propane to 3 molecules of isophorone diisocyanate, the adduct of 1 molecule of pentaerythritol to 4 molecules of toluene diisocyanate, the isocyanurate of hexamethylene diisocyanate (Desmodur ® N3390, ex Bayer), the uretdione of hexamethylene diisocyanate (Desmodur ® N3400, ex Bayer), the allophon
- (co)polymers of isocyanate-functional monomers such as ⁇ , ⁇ '-dimethyl-m-isopropenyl benzyl isocyanate are suitable for use.
- the above-mentioned isocyanates and adducts thereof may be present in the form of blocked or latent isocyanates.
- the non-volatile content of the coating composition is preferably 35-95 wt%, more preferably 65-85 wt%, and most preferably 70-80 wt%.
- the non-volatile content is most preferably in the range 40-45 wt%.
- the Volatile Organic Content (VOC) of the coating composition (determined according to ASTM D3960) according to the present invention can be more than 700 g/L, but is preferably less than 350 g/L, more preferably less than 250 g/L.
- the lithium salt that is present in the coating composition according to the present invention can be an inorganic or organic lithium salt. Both the anion and the cation of the lithium salt should be soluble in water. Lithium polysilicates and lithium-exchanged (silica) particles are therefore not considered to be lithium salts.
- the lithium salt has a solubility constant in water at a temperature of 25°C (K sp ; 25°C) in the range 1x10 -11 to 5x10 -2 , and most preferably 1x10 -5 to 2.5x10 -2 .
- the solubility constant is the product of the equilibrium concentrations of the ions in a saturated aqueous solution of the respective lithium salt. Each concentration is raised to the power of the respective coefficient of ion in the balanced equation.
- the solubility constants for different salts can be found in the Handbook of Chemistry and Physics.
- lithium salts examples include lithium carbonate, lithium phosphate, lithium sulphate, and lithium tetraborate.
- Lithium carbonate and lithium phosphate are preferred salts.
- Lithium carbonate is the most preferred salt.
- the lithium salt is preferably present in the coating composition according to the present invention in an amount of 1-40 vol%, based on the sum of the volumes of the non-volatile components of the coating composition. For solvent-borne compositions, it is more preferably 1-15 vol%, and most preferably 3-9 vol%, based on dry film volume; for water-borne compositions it is more preferably 5-25 vol% and most preferably 10-20 vol%, based on dry film volume.
- the volumes of the non-volatile components can be measured directly or they can be calculated on the basis of their densities.
- the intrinsic volume or density is used, as opposed to the bulk volume or density.
- the coating composition according to the invention comprises one or more additional corrosion inhibitors.
- inorganic inhibitors are potassium silicate; hydrogen phosphates such as CaHPO 4 , MgHPO 4 , and SrHPO 4 ; orthophosphates such as co-precipitated (multiphase pigment) zinc orthophosphate, zinc orthophosphate hydrate, zinc aluminium orthophosphate, and organicically modified basic zinc orthophosphate; polyphosphates such as strontium aluminium polyphosphate hydrate, zinc aluminium polyphosphate hydrate, magnesium aluminium polyphosphate, zinc aluminium triphosphate, and magnesium aluminium triphosphate; phosphosilicates such as calcium strontium phosphosilicate and strontium zinc phosphosilicate; other phosphates such as zinc phosphate and strontium borophosphate; hybrid pigments using mixtures of inorganic and organic inhibitors such as Zinc phosphate + ZnO + Zn(DMTD) 2 ; metal oxides such as oxides of zinc, magnesium, aluminium, lithium
- metallic Mg is only suitable for use in solvent-borne or solvent-free coatings compositions, because of its reactivity with water.
- organic inhibitors are azoles like imidazoles, thiazoles, tetrazoles, and triazoles like (substituted) benzotriazole, and 2-mercaptobenzothiazole; amines like N-phenyl-1.4-phenylenediamine and Schiff bases (condensation products of amine with aldehyde or ketone) like N,N-o-phenylen-bis(3methoxysalicylidenimine); amino acids like tryptophan thiole group compounds like DMTD or 1-phenyl-2.5-dithiohydrazodicarbonamide; phthalazin derivatives like 2-[(7-anilino-5-[1,2,4]triazolo [3,4-b][1,3,4]thiadiazin-3-yl)methyl] phthalazin-1(2H)-one;
- the most preferred additional corrosion inhibitors are magnesium-containing materials, such as magnesium metal, magnesium oxide, oxyaminophosphate salts of magnesium (e.g. Pigmentan ® 465M), magnesium carbonate, and magnesium hydroxide.
- magnesium metal is suitable employed in the form of particles, for example in the form of powder, flakes, spheres or spheroids.
- stabilizing agents are generally known and commercially available.
- the additional corrosion inhibitors are preferably present in the coating composition in an amount of 0.1-50 vol%, more preferably 1-20 vol%, and most preferably 1-15 vol%, based on the sum of the volumes of the non-volatile components of the coating composition.
- the volumes of the non-volatile components can be measured directly or they can be calculated on the basis of their densities. For powders.and granular solids, the intrinsic volume or density is used, as opposed to the bulk volume or density.
- a magnesium salt or oxide is present in the composition according to the invention, it is preferably present in a weight ratio Mg:Li of at least 0.1:1, more preferably at least 0.5:1, more preferably at least 1:1, and most preferably at least 3:1. This ratio is preferably less than 30:1, more preferably less than 25:1, even more preferably less than 15:1, still more preferably less than 10:1, and most preferably less than 8:1.
- the weight ratio Mg:Li is preferably less than 500:1, more preferably less than 300:1, more preferably less than 250:1, even more preferably less than 100:1, even more preferably still less than 50;1, and most preferably less than 25:1.
- pigments e.g. titanium dioxide or iron oxide yellow
- extenders e.g. talcum, barium sulphate, mica, calcium carbonate, silica, or wollastonite
- rheology modifiers e.g. bentone SD 2 or organic rheology modifiers
- flow and levelling agents e.g. polysiloxanes and polyacrylate levelling additives
- solvents e.g. ketones such as methyl isobutyl ketone, aromatics such as xylene, alcohols such as benzyl alcohol, esters such as butyl acetate, and aliphatic solvents.
- the present invention further relates to the use of the coating composition according to the present invention as an anti-corrosive primer to coat non-ferrous substrates, such as magnesium, magnesium alloys, titanium, aluminium, aluminium alloy, and lithium-aluminium alloy substrates.
- non-ferrous substrates such as magnesium, magnesium alloys, titanium, aluminium, aluminium alloy, and lithium-aluminium alloy substrates.
- a preferred non-ferrous substrate is aluminium alloy. Examples of suitable aluminium alloys are 2024-T3 (bare or clad), 7075-T6 (bare or clad), 6061, 6111, 5052, 5083, 5251, 5454, 7017, and 7020.
- the coating composition according to the present invention is also suitable to coat ferrous substrates, such as steel, zinc-galvanized steel, galvalume, and galfan.
- the present invention further relates to the use of the coating composition according to the present invention to coat ferrous substrates.
- suitable ferrous substrates are cold and hot rolled steel, Stainless 304, B952 (zinc phosphate-modified), B1000 (iron phosphate-modified), and zinc-modified steel such as EZG 60G, EZG 60G with zinc phosphate modification, G90, and Galvanneal HIA Zn/Fe A45
- the coating composition according to the present invention is also suitable to coat non-metallic construction materials like plastics, thermoplastic composites (e.g. CETEX ® from Tencate), and Prepreg-based or Prepreg sandwich-based composites, such as the fibre-reinforced polymers or plastics sold under the name Hexply ® . Also metal matrix composites and ceramic matrix composites can be coated with the coating composition according to the present invention.
- non-metallic construction materials like plastics, thermoplastic composites (e.g. CETEX ® from Tencate), and Prepreg-based or Prepreg sandwich-based composites, such as the fibre-reinforced polymers or plastics sold under the name Hexply ® .
- metal matrix composites and ceramic matrix composites can be coated with the coating composition according to the present invention.
- the coating composition according to the present invention can be used as a primer, a self-priming topcoat, an intermediate coat, or a topcoat and may be applied to the substrate, with and without the use of a hexavalent chromium-free pre-treatment with a sol-gel system such as AC- ® 131 (AC Tech), PreKote ® (Pantheon Chemical), or a chemical conversion coating. It can also be applied to anodized surfaces, such as chromic acid anodized (CAA) surfaces, tartaric sulphuric acid anodized (TSA) surfaces, and boric sulphuric acid anodized (BSAA) surfaces.
- CAA chromic acid anodized
- TSA tartaric sulphuric acid anodized
- BSAA boric sulphuric acid anodized
- the coating composition can advantageously be used as an anticorrosive primer coating for non-ferrous metal substrates.
- the coating composition is applied to a substrate to form a primer layer in a multilayer coating system comprising a primer layer and a topcoat.
- the topcoat may be clear coat or a pigmented topcoat.
- the topcoat comprises a colour and/or effect imparting base coat applied on the primer layer and a clear coat applied on top of the base coat layer.
- the coating composition is especially suitable for use in the aerospace industry.
- the invention further relates to process of improving the corrosion resistance of a metal substrate comprising the steps of
- the metal of the metal substrate may be a non-ferrous metal, such as aluminium or an aluminium alloy. Alternatively, the metal may be a ferrous metal.
- the substrate may be the exterior or interior, including structural parts and the cabin, of an aircraft or a part thereof.
- the prepared dispersion is milled using an Eiger ® mini motor mill (50 cc milling chamber) filled with 150 gram Zirconox ® grinding media with a size of 1.7- 2.4 mm.
- the dispersions are passed through the milling chamber until a fineness of grind of less than 25 ⁇ m is achieved.
- Shaking can be used as an alternative method to milling with the mini motor mill. Approximately 150 mL of dispersion is prepared in a glass jar of 370 mL. 400 grams Zirconox ® grinding media (1.7- 2.4 mm) are added to the mixture.
- the samples are placed in a Skandex ® paint shaker until the fineness of grind is less than 25 ⁇ m. After shaking the mixtures are filtered to remove the grinding media before adding the letdown phase.
- the B component is added under stirring to ensure sufficient mixing to obtain homogeneous samples. This is especially important for the water-based examples.
- test panels are typically 7.5 cm x 15 cm (3 x 6-inch) and 0.8 mm thick.
- the alloy and pretreatments are described in each example. Prior to the coatings application the test panels are subjected to a specific pretreatment method.
- the panels Prior to the pretreatment the panels are degreased using a typical solvent cleaning solution (40% by weight isobutyl alcohol and 60% by weight N-butylacetate) followed by one of the following pretreatments:
- the panel is gently abraded using a 3M Scotch-Brite ® , very fine red pad. This is followed by cleaning the residues using the cleaning solvent. Panels are ready for application directly after the pre-treatment.
- the panels are abraded using a 3M Scotch-Brite ® , very fine red pad together with an alkaline cleaning solution (e.g. Turco ® Jet Clean 91, ex Henkel Technologies) to obtain a water-break-free surface for at least 30 seconds.
- the panel is rinsed and the sol gel (AC-131 CB or BB ex AC Tech) is applied using a hand spray bottle or atomized using a HVLP spray gun with 5 bar pressure. A mist coat of the material is applied covering the substrates.
- the panels are allowed to dry at ambient conditions and can be coated 1-2 hours after the sol gel application.
- Spray PreKote ® on the panel abrade the panel using a 3M Scotch-Brite ® , very fine red pad, let the matter rest for 2 minutes, and repeat the PreKote ® abrasion step, finish with a water rinse, ensure a water-break-free surface for 30 seconds (other wise repeat step 2), allow the panels to dry at ambient conditions, apply coating after 1-2 hours drying time.
- the panels are abraded using a 3M Scotch-Brite ® , very fine red pad together with an alkaline cleaning solution (e.g. Turco ® Jet Clean 91, ex Henkel Technologies) to obtain a water-break-free surface for at least 30 seconds.
- the panel is rinsed and the SurTec ® 650 RTU (Ready to Use) is applied using a HVLP spray gun with 5 bar pressure to atomize the material.
- the panels are stored at ambient conditions 23 ⁇ 2°C / 50 ⁇ 5 % RH for 1-2 hours before the application.
- the SurTec ® material can be applied by a dipping process as well.
- the panels are burnished using a sanding machine. Initially the panel is sanded with P80 sanding paper followed by P220. The panels are cleaned using the cleaning solvent prior to paint application. Paint samples have to be applied as soon as possible within 1 hour after burnishing.
- Panels are typically coated by means of spraying using a HVLP gravity feed spray gun. The coatings are allowed to induct for 30 minutes after mixing of the separate components. In all examples typically a polyurethane topcoat is applied, the commercially available Eclipse ® top coat ( ECL-G-101, ex AkzoNobel Aerospace Coatings) is used with curing solution PC 233 and TR-109 reducer.
- Eclipse ® top coat ECL-G-101, ex AkzoNobel Aerospace Coatings
- Fineness of grind The test is performed according to ISO 1524. In brief, paint is applied to a Hegman gauge using a scraper. The fineness of grind is defined as the place where discrete solid particles are clearly visible in the groove of the gauge. This value (fineness of grind) is displayed as Hegman or as micrometers ( ⁇ m)
- Dry film thickness The test is performed according to ISO 2808. In brief, this is a non-destructive precision measurement to measure the thickness of a dried paint system using an Eddy current instrument.
- Eddy current instrument work on the principle that a high frequency electromagnetic field, generated in the probe system of the instrument, will produce eddy currents in a conductor upon which the probe is placed, and that the amplitude and the phase of these currents are a function of the thickness of a non-conductive coating present between the conductor and the probe.
- examples of instruments are the Fischer Isoscope ® MP1 C for non ferrous and the Fischer Dualscope ® for Ferrous and Non-Ferrous substrates).
- Cross-hatch adhesion test The test is performed according to ISO 2409 after 7 days curing and 7 days immersion in water. Briefly, the test method is executed by scribing through the coating to a metal panel with a sharp knife, a first set of 6 parallel lines (2 mm apart). A second, similar set of lines is then scribed on the panel at a 90 degrees angle to the first set. Following this, a strip of tape coated with a pressure-sensitive adhesive is pressed against the painted surface on the scribed portion of the test panel and then quickly removed. The coating is evaluated qualitatively according to the amount of paint removed by the adhesive on the tape.
- Corrosion-resistance of coated parts is measured by means of the standard salt spray (fog) test for paints and varnishes as described in ASTM B117. In this test, the parts are placed in a chamber kept at constant temperature (e.g. 35°C) where they are exposed to a fine spray (fog) of a 5 percent salt solution for specified periods of time.
- a scribe (preferably Saint Andrew's cross, 200 - 250 ⁇ m deep and 1 mm wide, U-shape scribe) is made by mechanically milling. After scribing the backsides of the panels are taped (e.g. Tesaflex ® 4163) to prevent corrosion on the backsides and edges of the panels.
- Panels are evaluated on appearance in the scribe (dark, black, shiny), corrosion products in the scribe (calculating % of area affected of the total scribe area), Corrosion around the scribe is evaluated by measuring the corrosion creep or size of the corrosion blister from the scribe.
- Example 1 Use of lithium carbonate in a solvent-borne epoxy coating
- This example demonstrates the effect of using a lithium salt in a screening experiment, comparing it to several different chrome-free corrosion inhibitors recommended for aluminium alloys (polyphosphate, e.g. Heucophos ® SRPP, and a zinc aluminium ortho phosphate hydrate, e.g. Heucophos ® ZPA, oxyaminophosphate salt of magnesium, Pigmentan ® 465M).
- polyphosphate e.g. Heucophos ® SRPP
- a zinc aluminium ortho phosphate hydrate e.g. Heucophos ® ZPA, oxyaminophosphate salt of magnesium, Pigmentan ® 465M.
- Component A was prepared according to the following procedure: all components were added in the order displayed in the table (top down) under a high speed dissolver to a 500 ml can. All ingredients were added under stirring.
- the mixture was dispersed for a further 10 minutes having a good dispersing vortex (2,000-3,000 rpm) depending on the viscosity to achieve a minimum temperature of 55°C to activate the MPA-2000X rheology agent. The temperature did not exceed 70°C.
- the remaining Epikote ® 828 and methyl amyl ketone were added and the formulations were milled with an Eiger ® mini motor mill to achieve a fineness of grind of less than 25 ⁇ m.
- the letdown phase (Epikote ® 828, methyl amyl ketone, and BYK ® 358N) was added in this order while stirring the mixture to complete component A.
- the curing solution, component B was prepared separately by mixing with a spatula.
- Component B was added to Component A and was stirred to a homogeneous mixture. 30 minutes after mixing, the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m. The coated panels were cured overnight at 23 ⁇ 2°C / 50 ⁇ 5% RH. A polyurethane based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m.
- ECL-G-101 polyurethane based topcoat Eclipse ®
- lithium carbonate exhibits a good anticorrosive nature when incorporated in coatings.
- Example 2 Application of various lithium salts in a solvent-based epoxy amine coating composition.
- This example demonstrates the activity of lithium salts in general compared to alternative carbonate salts and a commonly used extender.
- Several lithium salts were selected to be incorporated into the paint formulations. All salts were added to the formulation in the same volume of the dry film based on the density of the lithium salt.
- Component A was prepared according to the following procedure:
- the 2024 T3 bare and clad panels were prepared according to pretreatment method A.
- Component B was added to component A and the mixture was stirred to a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m. After overnight cure at ambient condition a polyurethane based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m. All samples were cured at 23 ⁇ 2°C / 50 ⁇ 5 % RH for 7 days before testing.
- the compositions containing lithium salts show a distinct difference in scribe appearance. Shiny, bright scribes are observed with a reduced amount of corrosion products present, suggesting a passivation mechanism. Due to the risk of osmotic blistering, it is not common to include these types of soluble salts in coatings at these high levels. This is confirmed by the evaluation of blistering using the ASTM D-714 scale after exposure in the neutral salt spray. Lithium carbonate and lithium phosphate do not show any sign of osmotic blistering. This osmotic effect is also clearly observed when performing the adhesion tests. All salts except lithium phosphate and lithium carbonate display adhesive failure after immersion in water.
- Lithium phosphate having the lowest solubility shows the lowest degree of brightness in the scribe. Compared to the sodium and potassium salts, the performance of the lithium salt is striking and much better. The results demonstrate that the lithium ion and not the salt specifically is mainly responsible for the passivation effect in the scribe. Low solubility means a lower amount of ions in solution, resulting in dull but still clean scribes, whereas high solubility means high levels of lithium ions in the scribe and shiny scribes. However, all lithium-containing samples display a lower amount of corrosion products in the scribe and a significantly different appearance compared to the uninhibited samples. These observations demonstrate that the addition of lithium salts to coating formulations improves the corrosion protection.
- Component A was prepared according to the following procedure: all components were added in the order displayed in the table (top down) under a high speed dissolver to a 500 ml can. All ingredients were added under stirring.
- the mixture was dispersed for 10 minutes more having a good dispersing vortex (2,000-3,000 rpm) depending on the viscosity.
- the temperature should not exceed 70°C.
- the remaining Epikote ® 828 and methyl amyl ketone were added and the formulations were milled with an Eiger ® mini motor mill to a fineness of grind of less than 25 ⁇ m.
- Epikote ® 828, methyl amyl ketone, and BYK ® 358N were added in this order while stirring the mixture to complete component A.
- the curing solution component B was prepared separately by mixing with a spatula.
- Component B was added to Component A and stirred to a homogeneous mixture.
- the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m 30 minutes after mixing. After an overnight cure for 16 hrs and ambient conditions (23 ⁇ 2°C / 50 ⁇ 5% RH) a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m.
- Example 4 utilization of lithium carbonate and lithium phosphate in a solvent-based epoxy amine coating.
- Example 3 a synergistic effect of lithium carbonate with magnesium oxide and oxyaminophosphate salts of magnesium (Pigmentan ® 465M) was observed. This example is to investigate the performance of lithium carbonate and phosphate with and without combination with these magnesium salts.
- Component A was prepared according to the following procedure: components (methyl amyl ketone, Solsperse ® 32500, Epikote ® 828, magnesium oxide, Blanc Fixe N, Wollastocoat ® 10ES, Kronos 2310 ®) were added under a high speed dissolver to a 500 mL tin can. After the addition of the MPA ® -2000X, the components were dissolvered at 2,000-3,000 rpm to obtain a minimum temperature of 55°C. The temperature was retained for 15 minutes but should not exceed 70°C. The remaining Epikote ® 828 epoxy resin and methyl amyl ketone were added before milling. The mixture was milled with an Eiger ® mini motor mill to a fineness of grind of 25 ⁇ m. After calculation of the yield after milling, component A was completed using the letdown phase. The letdown was added to component A while stirring, obtaining a homogeneous mixture.
- components methyl amyl ketone, Solsperse ® 32500, Epikot
- Component B was prepared separately.
- Component B was been added to component A. The mixture was stirred to a homogeneous mixture. The paints were applied 30 minutes after mixing.
- a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m. All samples were cured at 23 ⁇ 2°C / 50 ⁇ 5% RH for 7 days before testing.
- the samples containing lithium salt show scribes with significantly different appearance compared to the samples without lithium salts. In all cases the samples with lithium show much less corrosion (white) deposits in the scribe and all but one lithium-containing sample show shiny/bright.
- the samples without lithium 4-A and 4-H show dark scribes with high density corrosion products.
- lithium phosphate shows a dull but light scribe. This behaviour is different compared to the lithium carbonate samples and is most likely caused by a lower solubility of the lithium phosphate. Despite the dull scribe, no corrosion-induced blisters are found for sample 4-D.
- Samples 4C en D also show a higher density of corrosion-induced blisters compared to the samples wherein the lithium salts are combined with magnesium oxide or Pigmentan ® 465M.
- Example 5 Level of lithium carbonate.
- Lithium salt on non-volatiles 0 0.5 1.5 5 10 20 30 general paint properties Density (Kg/l) 1.45 1.45 1.44 1.42 1.38 1.30 1.27 epoxy/amine 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Non-volatiles by weight (%) 76.12 76.05 75.92 75.46 74.79 73.30 73.24 Non-volatiles by volume (%) 60.90 60.90 60.90 60.90 60.90 61.70 PVC 30.00 30.00 30.00 30.00 30.00 32.39 VOC less water (g/L) 347 347 347 347 347 347 347 340
- Component A was prepared according to the following procedure: all components were added under stirring to a 370 ml glass jar. After the addition of the final component, 400 grams of Zirconox ® pearls (1.7-2.4 mm) were added to the mixture. The salts were dispersed to a particle size smaller than 25 ⁇ m by shaking for 20 minutes on a Skandex ® shaker. Before continuing, the mixtures were filtered to remove the grinding media. Component B was prepared separately.
- Component B was added to component A and the mixture was stirred to a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m. After overnight cure at ambient conditions 23 ⁇ 2°C / 50 ⁇ 5% RH, a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off, achieving a dry film thickness of 60-70 ⁇ m.
- ECL-G-101 polyurethane-based topcoat Eclipse ®
- Example 6 Activity in solvent based polyurethane technology
- the example is intended to demonstrate that the activity in lithium-based salts is not limited to the application in epoxy amine technology.
- the example describes the incorporation and activity of lithium carbonate into a polyurethane-based coating.
- Component A was prepared according the following procedure: all components were added under stirring to a 370 ml glass jar. After the addition of the final component, 400 grams of Zircono) ® pearls (1.7-2.4 mm) were added to the mixture. The salts were dispersed to a particle size smaller than 25 ⁇ m by shaking for 10 to 20 minutes on a Skandex ® shaker. After shaking the mixtures were filtered to remove the grinding media.
- T3 clad and bare panels were prepared according to pretreatment method C.
- the panels with chromic acid anodization (CAA) were prepared externally.
- Component B was added to component A and the mixture was stirred to a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m.
- the samples containing lithium carbonate showed clearly shiny scribes after 500 hrs of neutral salt spray exposure. Compared to the uninhibited sample, the lithium carbonate samples showed a much lower corrosion product concentration in the scribe and limited to no creep or corrosion-induced blistering from the scribe. Despite the level of soluble material in the formulation no blistering was observed on the face of the panel.
- Epoxy amine and polyurethane paint technology are very well known in the 2 component paint technology.
- One of the newer technologies is the polyaspartic paint technology. In this technology hindered amines are crosslinked with isocyanate hardeners to obtain a crosslinked paint film.
- the technology is used as primer, topcoat or direct to metal applications (priming topcoat).
- the example demonstrates the activity of lithium salts like lithium carbonate in this technology.
- Component A was prepared according to the following procedure: all components were added under stirring to a 370 ml glass jar. After the addition of the final component, 400 grams of Zirconox ® pearls (1.7-2.4 mm) were added to the mixture. The salts were dispersed to a particle size smaller than 25 ⁇ m by shaking for 10 to 20 minutes on a Skandex ® shaker. After shaking the mixtures were filtered to remove the grinding media.
- Component B was prepared separately.
- This technology has a moderate adhesion on aluminium alloys. Therefore, for this example, 2024 T3 clad and bare panels were prepared according to pretreatment C. In addition, panels with chromic acid anodization (CAA) were prepared externally.
- CAA chromic acid anodization
- Component B was added to component A and the mixture was stirred to a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m. After overnight cure a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m.
- ECL-G-101 polyurethane-based topcoat Eclipse ®
- Example 8 Lithium salts in water-based epoxy amine technology
- This example demonstrates the use and activity of lithium salts in a water-based epoxy amine composition. Both lithium phosphate and lithium carbonate are compared to a formulation based on barium sulphate. Passivating activity is demonstrated using lithium carbonate and lithium phosphate.
- Component A was prepared according to the following procedure: all components were added under a high speed dissolver to a 500 ml can. All ingredients were added under stirring. After the addition of the barium sulphate, lithium carbonate or lithium phosphate, the mixture was dispersed for 10 minutes under a high speed dissolver having a good dispersing vortex (2,000-3,000 rpm) depending on the viscosity. The fineness of grind of the barium sulphate sample (formulation A) was already less than 25 ⁇ m after the high speed dissolver process. The other formulations were milled with an Eiger ® mini motor mill to achieve a fineness of grind of less than 25 ⁇ m.
- Ancarez ® AR555, demineralized water, and Coat-O-Sil ® 1770 were added in this order while stirring the mixture to complete component A.
- the curing solution (component B: Anquamine ® 419, Dowanol ® PM glycol ether, and demineralized water) was prepared separately by adding the ingredients while stirring.
- 2024 T3 bare and clad panels were prepared using pretreatment method A.
- externally prepared 2024 T3 bare CAA (chromic acid anodized) panels were used as well.
- Component B was added to Component A while stirring to obtain a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m. The panels were cured by means of a forced cure cycle of 30 minutes at 80°C in a forced draft oven after a flash-off period of 30 minutes after application to ensure good film formation. After the cooling period of 30 minutes, a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m.
- ECL-G-101 polyurethane-based topcoat Eclipse ®
- the samples containing lithium salts show shiny scribes after neutral salt spray exposure on all substrates. This together with an improved resistance to corrosion-induced blistering provides passivation and thus protection to the scribe. As observed in solvent-based paint formulations, the lithium salts also show their protective and active nature in water-based systems.
- Example 9 Application of lithium carbonate in water-based PUR technology.
- This example demonstrates the activity of a lithium salt like lithium carbonate in a water-based polyurethane formulation. Two water-based resins were tested.
- Component A was prepared according to the following procedure: Prior to the addition under stirring, the dispersion phase was prepared. All components were added under a high speed dissolver to a 500 ml can. The ingredients were added under stirring. After addition of the barium sulphate or lithium carbonate, the mixture was dispersed for 10 minutes using a high speed dissolver having a good dispersing vortex (2,000-3,000 rpm) depending on the viscosity. The fineness of grind of the barium sulphate dispersion (formulations 9-A and 9-B) was already less than 25 ⁇ m after the high speed dissolver process.
- the other formulation was milled with an Eiger ® mini motor mill using Zirconox ® milling beads (1.7-2.4 mm) to achieve a fineness of grind of less than 25 ⁇ m.
- the hardener (Component B) was prepared separately by adding the individual components while stirring.
- 2024 T3 clad panels were prepared using pretreatment method A.
- 2024 T3 clad CAA (chromic acid anodized) panels were used as well.
- the systems were cured by means of a forced cure cycle of 30 minutes at 80°C in a forced draft oven after a flash-off period of 30 minutes after application. After a cooling period of 30 minutes, a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m.
- ECL-G-101 polyurethane-based topcoat Eclipse ®
- lithium salts can also be added to water-based polyurethane formulations. The example demonstrates that the type of water-based resin does not have an effect on the performance.
- Example 10 Activity of formulations containing lithium salts over various chrome-free pretreatments
- Component A was prepared according to the following procedure: components of the dispersion phase (methyl amyl ketone, Solsperse ® 32500, Epikote ® 828 epoxy resin, magnesium oxide, Blanc Fixe N, Wollastocoat ® 10ES, Kronos ® 2310, and MPA ® -2000X) were added under a high speed dissolver to a 500 mL tin can. After the addition, the components were dissolvered (2,000-3,000 rpm) to obtain a temperature of 55°C. The temperature was retained for 15 minutes, not exceeding 70°C. The remaining Epikote ® 828 epoxy resin and methyl amyl ketone were added before milling.
- components of the dispersion phase methyl amyl ketone, Solsperse ® 32500, Epikote ® 828 epoxy resin, magnesium oxide, Blanc Fixe N, Wollastocoat ® 10ES, Kronos ® 2310, and MPA ® -2000X
- the mixture was milled with an Eiger ® mini motor mill to obtain 25 ⁇ m fineness of grind.
- component A was completed using the letdown phase.
- the letdown was added to complete component A while stirring, obtaining a homogeneous mixture.
- TSA is a chrome-free anodization process based on tartaric sulphuric aid which is executed by an external company.
- Component B was added to component A. The mixture was stirred to a homogeneous mixture. The paints were applied 30 minutes after mixing.
- a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m. All samples were cured at 23 ⁇ 2°C / 50 ⁇ 5% RH for 7 days before testing.
- Table 10-2 Adhesion on 2024 T3 clad panels using different pretreatments 10-A 10-B 10-C Magnesium oxide Magnesium Oxide / Lithium carbonate Pigmentan ® 465 M / Lithium carbonate pretreatment initial 7 days water
- Initial 7 days water initial 7 days water Scotch-brited Gt 0 Gt 0 Gt 0 Gt 1 Gt 0 Gt 0 AC-131 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 PreKote® Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 SurTec® 650 Gt 0 Gt 2 Gt 0 Gt 2 Gt 0 Gt 0 Gt 0 TSA Gt 0 Gt 2 Gt 0 Gt 0 Gt 0 Gt 0 Gt 0 Table 10-3: 1000 hrs Neutral salt spray exposure.
- Coatings containing lithium salts are compatible with these chrome-free pretreatments and chemical conversion coatings.
- the coating compositions were prepared according to the method described in Example 10.
- Component B was added to component A. The mixture was stirred to a homogeneous mixture. The paints were applied 30 minutes after mixing.
- a polyurethane-based topcoat Eclipse ® (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m. All samples were cured at 23 ⁇ 2°C / 50 ⁇ 5% RH for 7 days before testing.
- Alloy 7075 T6 Bare showed an improved scribe appearance when coated with lithium-containing samples (10-B-10-C) compared to the sample without lithium carbonate, but not to the same degree as the other alloys.
- this 7075 T6 Clad showed shiny scribes when coated with lithium carbonate-containing paints, whereas the sample without it showed a dark scribe full of corrosion products.
- the coating compositions were prepared according to the method described in Example 10.
- the substrates were prepared according to the described methods:
- Component B was added to component A and the mixture was stirred to a homogeneous mixture. 30 minutes after mixing the paints were applied in one wet coat to a dry film thickness of 20-30 ⁇ m on the various ferrous substrates. After overnight cure a polyurethane-based topcoat Eclipse (ECL-G-101) was applied in 2 coats with 30 minutes flash-off between coats, achieving a dry film thickness of 60-70 ⁇ m. All samples were cured at 23 ⁇ 2°C / 50 ⁇ 5 % RH for 7 days before testing.
- ECL-G-101 polyurethane-based topcoat Eclipse
- the samples containing lithium carbonate showed a very good resistance to creep from the scribe after 1,000 hrs of neutral salt spray (ASTM 117). This performance was equal to or better than the current state of the art chromate-containing technology.
- the example showed that lithium salts like lithium carbonate can also be used to protect ferrous substrates in addition to their performance in non-ferrous substrates.
- Sample 13 A Comparative Mg rich primer Component Wt% Vol % Epoxy resin 19.7 20.8 Mg flakes 34.9 26.0 Lithium carbonate 0 0 Additives 3.1 3.1 Solvent blend 42.3 50.0
- Sample 13 B Mg rich primer with lithium carbonate Component Wt% Vol % Epoxy resin 18.4 20.0 Mg flakes 32.6 24.9 Lithium carbonate 6.5 4.1 Additives 2.8 3.0 Solvent blend 39.6 48.0
- An example of a suitable epoxy resin is the Bisphenol A/epichlorohydrin-based Epon 1001 F available from Hexion Specialty Chemicals of Houston, TX, United States. Mixing of components was accomplished by high speed dispersion.
- the bases described above Prior to application, the bases described above were mixed with the manufacturer-recommended amounts of curing agent(s) and solvents to achieve proper cure and application viscosity.
- a suitable curing agent is the polyamide based Ancamide 220 from Air Products of Allentown, PA, United States.
- the positive control primer was a commercially available primer qualified to MIL-PRF-23377, Class C2.
- Class C2 describes the standard strontium chromate-containing formulations.
- Corrosion test panels were 3" x 6" pieces of bare 2024-T3 alloy as specified by MIL-PRF-23377 and MIL-PRF-32239. Surface preparation consisted of PreKote application as described above. Following PreKote application, the test panels were coated with the primer formulations 13 A, 13 B, and 13 C described above. After 5 hours, a MIL-PRF-85285 qualified topcoat, Aerodur 5000, was applied. The coating systems were then allowed to cure for one to two weeks prior to scribing and exposure in ASTM B117 salt spray.
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Claims (17)
- Beschichtungszusammensetzung, die unter 120 °C härtbar ist und ein filmbildendes Harz, ein Härtungsmittel für das filmbildende Harz und ein Lithiumsalz umfasst, wobei das Lithiumsalz aus anorganischen und organischen Lithiumsalzen, die eine Löslichkeitskonstante in Wasser bei 25 °C im Bereich von 1 x 10-11 bis 5 x 10-2 aufweisen, ausgewählt ist.
- Beschichtungszusammensetzung gemäß Anspruch 1, wobei das filmbildende Harz aus der Gruppe ausgewählt ist, die aus Epoxidharzen, Polyestern, Polyacrylaten, Polyurethanen, Polyethern, Polyaspartaten, Polysiloxanen, Isocyanaten, mercaptofunktionellen Harzen, aminfunktionellen Harzen, amidfunktionellen Harzen, imidfunktionellen Harzen, silanhaltigen Harzen, Polysiloxanen, Acetoacetatharzen, funktionellen fluorierten Harzen, Alkydharzen und Gemischen davon besteht.
- Beschichtungszusammensetzung gemäß Anspruch 2, wobei das Lithiumsalz aus Lithiumcarbonat, Lithiumphosphat und Gemischen davon ausgewählt ist.
- Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche, wobei die Zusammensetzung auf Lösungsmittel basiert.
- Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche 1 bis 3, wobei die Zusammensetzung auf Wasser basiert.
- Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche, die einen oder mehrere zusätzliche Korrosionsinhibitoren umfasst.
- Beschichtungszusammensetzung gemäß Anspruch 6, wobei der zusätzliche Korrosionsinhibitor ein magnesiumhaltiges Material ist.
- Beschichtungszusammensetzung gemäß Anspruch 7, wobei das magnesiumhaltige Material aus der Gruppe ausgewählt ist, die aus Magnesiummetall, Magnesiumlegierung, Magnesiumoxid, Oxyaminophosphatsalzen von Magnesium, Magnesiumcarbonat und Magnesiumhydroxid besteht.
- Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche, wobei die Menge an Lithiumsalz in der Beschichtungszusammensetzung 1 bis 40 Vol.-% beträgt, bezogen auf die Summe der Volumina der nichtflüchtigen Komponenten der Beschichtungszusammensetzung.
- Verwendung der Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche als antikorrosive Grundierungsbeschichtung für Substrate aus Nichteisenmetallen.
- Verwendung gemäß Anspruch 10, wobei das Nichteisenmetall eine Aluminiumlegierung ist.
- Verwendung gemäß Anspruch 11, wobei die Aluminiumlegierung aus 2024 T3 Clad, 2024 T3 Bare, 7075 T6 Clad und 7075 T6 Bare ausgewählt ist.
- Verfahren zur Verbesserung der Korrosionsbeständigkeit eines Metallsubstrats, umfassend den Schritt:a) Auftragen einer Beschichtungszusammensetzung gemäß einem der vorstehenden Ansprüche 1 bis 9 auf das Metallsubstrat; undb) Härten der aufgetragenen Beschichtungszusammensetzung.
- Verfahren gemäß Anspruch 13, wobei das Metall des Metallsubstrats ein Nichteisenmetall ist.
- Verfahren gemäß Anspruch 14, wobei das Nichteisenmetall Aluminium oder eine Aluminiumlegierung ist.
- Verfahren gemäß Anspruch 14, wobei das Substrat ein Flugzeug oder ein Teil davon ist.
- Substrat, beschichtet mit einer Beschichtungszusammensetzung gemäß einem der Ansprüche 1 bis 9.
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PCT/EP2010/054463 WO2010112605A1 (en) | 2009-04-03 | 2010-04-02 | Anti-corrosive coating composition |
EP10716781.9A EP2414464B1 (de) | 2009-04-03 | 2010-04-02 | Beschichtungszusammensetzung, die zur beschichtung von eisenfreien oberflächen geeignet ist |
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WO2023215893A1 (en) * | 2022-05-06 | 2023-11-09 | The Boeing Company | Corrosion resistant adhesive sol-gel |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2023215898A1 (en) * | 2022-05-06 | 2023-11-09 | The Boeing Company | Corrosion resistant adhesive sol-gel |
WO2023215893A1 (en) * | 2022-05-06 | 2023-11-09 | The Boeing Company | Corrosion resistant adhesive sol-gel |
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EP2414464A1 (de) | 2012-02-08 |
AU2010230147A1 (en) | 2011-10-13 |
CN102378793A (zh) | 2012-03-14 |
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CN102378793B (zh) | 2016-01-20 |
RU2011144574A (ru) | 2013-05-10 |
KR20120007506A (ko) | 2012-01-20 |
ES2433644T3 (es) | 2013-12-12 |
RU2531193C2 (ru) | 2014-10-20 |
WO2010112605A1 (en) | 2010-10-07 |
AU2010230147B2 (en) | 2014-10-23 |
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